Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Curry of Mutton
Ingredients
Directions
Prepare the curry
Fry the onion in butter until soft.
Mix flour, curry powder, salt, and pepper into the onion and butter.
Gradually stir in the stock.
Cook and serve
Add the mutton pieces and simmer until tender.
Serve the meat on a hot platter with rice around it.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Pepper + muttontop 16% of all pairsSmell alikelowCooked together5,442 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + muttontop 16% of all pairsSmell alikemoderateCooked together3,781 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton
- Provides the main protein, which becomes tender through slow simmering.
- Flour
- Thickens the butter and onion mixture so the sauce becomes body rather than watery.
- Butter
- Carries the curry powder and softens the onion, adding richness to the sauce.
- Onion
- Sweetens as it softens and forms the base flavor of the sauce.
- Stock
- Forms the liquid that cooks the mutton and blends with the flour into the sauce.
The step that matters
Stir in the stock gradually. Adding liquid slowly while stirring lets the flour disperse evenly, preventing lumps and giving a smooth, thickened sauce.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour, pepper, mutton):
- Shallotfits better
- Leekfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against butter, flour, pepper, mutton. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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